Accession Number : ADD016421

Title :   Power Conversion System Modification to Permit Use of DC Power Source.

Descriptive Note : Patent, Filed 7 Aug 92, patented 7 Jun 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Frank, Thomas A ; Michel, Claude D

Report Date : 07 Jun 1994

Pagination or Media Count : 5

Abstract : In an electrical power conversion system designed to operate on three-phase AC voltage generated by a motor generator, a modification is provided to permit the use of a DC power source to operate same. The power conversion system has a plurality of AC-to-DC conversion means for converting the generated three-phase AC voltages. The first specified DC voltage is supplied to a voltage reduction means and the second specified DC voltage is supplied to a control logic circuit of the power' source and means, utilizing power from said DC power source, for supplying DC voltages equivalent to the first and second specified DC voltages. The supplying means is isolated from the generated three-phase voltage such that the power conversion system can operate on: three-phase AC voltage generated by the motor generator, DC voltages equivalent to the first and second specified DC voltages from the supplying means, or a combination of the three-phase AC voltage generated by the motor generator and the DC voltages from the supplying means

Descriptors :   *CONVERSION, CONTROL, LOGIC CIRCUITS, MODIFICATION, MOTOR GENERATORS, REDUCTION, VOLTAGE

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE